Hi there,
After checking the example in the Schreier-Metall website and reading the document I can present what you need through a modern light web app with the ability to run the admin dashboard only from your computer while the table could be integrated on any website the admin dashboard would be user-friendly and easy to handle and the changes will apply to the tables instantly by using real-time database (firebase).
you can check one of my projects were I had to represent some data in a table after a snake draft is made:
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message me to discuss more details
best regards,
Ahmed.